Yeah I'm not a fan of the overly dramatic suicide over a relationship cliche. It just makes relationships come off as toxic when a person threatens suicide just to make the other person stay. I find nothing romantic about it.
Actually a pretty good ending. The story didn't drag itself on or overstay its welcome.
Also I have to confess I was wondering what the mother was doing through all this carnage lol. Her presence pretty much disappeared after the 1st chapter or so.